13
.
Table 2: Buchholz indentation - Classification of test results
Indentation length
Indentation
resistance
Indentation depth
Minimum coating thickness for which
a measurement is valid
(mm)
(µm)
(mils)
(µm)
(mils)
0.8
125
5
0.2
15
0.59
0.85
118
6
0.24
20
0.79
0.9
111
7
0.28
20
0.79
0.95
105
7
0.28
20
0.79
1.0
100
8
0.31
20
0.79
1.05
95
9
0.35
20
0.79
1.1
91
10
0.39
20
0.79
1.15
87
11
0.43
25
1
1.2
83
12
0.47
25
1
1.3
77
14
0.55
25
1
1.4
71
16
0.63
30
1.18
1.5
67
18
0.71
30
1.18
1.6
63
21
0.83
35
1.38
1.7
59
24
0.94
35
1.38